Research On Unsignalized Round About Traffic Operation Evaluation And Improvement Measures

With the continuous development of economic、social and transportation industry；Theprocess of urbanization is gradually accelerated, A higher demand on the city roads. At thesame time the growing urban road traffic flow, For no signal Roundabouts, its capacity andoperating efficiency far from being able to meet the transport needs of the high-speeddevelopment, signal roundabout bottleneck for traffic operating efficiency of the entire roadsystem affect its movement. For some small and medium-sized cities no signal roundabouthas gradually become important issues affecting urban functions and development. Therefore,the evaluation of the signal roundabout traffic conditions, accurate grasp of the causes oftraffic problems no signal roundabout for reasonable of great significance to improve thesignal-roundabout. In reference to the results of the research scholars at home and abroad onthe basis of the signal roundabout traffic operation Evaluation and Improvement Strategysome exploring.Firstly, the research results of domestic and foreign scholars analyzed and summarized,described the need for no signal roundabout traffic operation evaluation. No signalroundabout analysis, analysis of signal roundabout traffic conditions influencing factors fromdifferent angles.Secondly, on this basis, to establish a multi-level evaluation index system, acomprehensive evaluation from the three aspects of the transport level, the level of trafficmanagement, traffic operation efficiency, and evaluation content analysis, calibration of theevaluation. By comparison and selection of different evaluation methods, combined with theadvantages and disadvantages of the Analytic Hierarchy as the evaluation method andevaluation index system proposed improvement measures.Finally, The object of study is Tianjin Wulipu no signal ring intersection, no signalroundabout traffic conditions established evaluation system and improvement measures forevaluation and analysis, and got good results.